GM Service Manual Online
For 1990-2009 cars only
Figure 1:

LH Front Seat Back


Object Number: 492615  Size: MF
(1)Lumbar Vertical Position Sensor
(2)Lumbar Vertical Motor
(3)LH Seat Recline Motor
(4)S331
(5)S330
(6)Lumbar Horizontal Motor
(7)Lumbar Horizontal Position Sensor
Figure 2:

LH Front Seat Horizontal and Vertical Motors and Sensors


Object Number: 492636  Size: MF
(1)Horizontal Position Sensor
(2)Rear Vertical Position Sensor
(3)Rear Vertical Motor
(4)Front Vertical Motor
(5)Horizontal Motor
(6)Front Vertical Position Sensor
Figure 3:

LH Lumbar and Seat Switch


Object Number: 492640  Size: MF
(1)LH Seat Switch
(2)LH Lumbar Switch
Figure 4:

LH Seat Connectors


Object Number: 492643  Size: MF
(1)C302
(2)Inflatable Restraint Connector
Figure 5:

Traction Control and Heated Seat Switches, Center Front of the Passenger Compartment


Object Number: 524433  Size: LF
(1)Console Trim Plate
(2)RH Heated Seat Switch (w/KA1)
(3)Traction Control Switch (w/NW9)
(4)LH Heated Seat Switch (w/KA1)